- Original: βρύχω - Transliteration: Brucho - Phonetic: broo'-kho - Definition: 1. to grind, gnash with the teeth 2. to bite, to chew - Origin: a primary word - TDNT entry: 11:41,1 - Part(s) of speech: Verb - Strong's: A primary verb; to grate the teeth (in pain or rage): - gnash. Total KJV Occurrences: 1 • gnashed, 1 Act 7:54